Lock for car-doors



(Modem W. BRADLEY.

Look for Car Bows.- No. 232,448. Patented Sept. 21,1880.

N4 PETERS, FNOTO L|THOGRAPHER, WASHINGTON, D c.

UNITED STATES PATENT Orrin WILLIAM BRADLEY, OF FORT WAYNE, INDIANA.

LOOK FOR CAR-DOORS.

SPECIFICATION forming part of Letters Patent No. 232,448, datedSeptember 21, 1880.

Application filed June 22, 1880.

To all whom it may concern Be it known that I, WILLIAM BRADLEY, of FortWayne, in the county of Allen, and in the State of Indiana, haveinvented certain new and useful Improvements in Oar-Door Locks; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawing,and to the letters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a lock for freight-car doors, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, whichrepresents the side of a car with my lock applied thereto.

A represents the side of a freight-car with sliding door B, the doorbeing provided with two stationary projecting spear-shaped latches, G G.

In a casing on the car is a vertically-movable bar or rod, D, placed insuitable guides, and tothis rod or bar are rigidly attached two hooks, FF, at proper distances apart. Below each hook F is a movable hook, F,having an elongated slot in its inner end, through which the bar or rodD passes.

a a are stops to prevent the hooks F from falling down, and which serveas fulcrums for said hooks.

On the lower part of the bar or rod 1) is located a pin, 1), just abovethe rear end of the lower hook F, which bears upon the said end of thehook, and holds it in normal position and returns it thereto whenshifted.

The letter b indicates a hen twire guard secured to the bar D, its upperhorizontal portion bearing against the rear end of the upper hook F, andserving to hold and return said hook to a normal position, in a mannersimilar to the pin 11, operating against the lower hook F.

(ModeL) The operation of my improved lock is as follows: Upon closingthe door 13 the latches O G are forced between the respective hooks Fand F, which causes the hooks F to be elevated, carrying the rod Dupward. The rear ends of the hooks F are thus relieved of the pressureupon them, and are allowed to move on their fulcrums, so as to permittheir outer ends to drop, thus permitting the heads (3 to pass freelybetween them until the shoulders on said heads pass the shoulders of thehooks, when the upper hooks drop and the outer ends of the lower hooksare elevated so as to automatically seize the heads 0, and thus securelylock the door. To open the door it is only necessary to raise the bar D,which releases the heads 0 and permits the door to be moved back.

The lower end of the bar or rod D is protected by a cover, I. A seal mayfirst be applied to the bar, and then the protecting-cover placed inposition.

This device is simple and cheap, and at the same time forms a secureprotection for goods in transit and otherwise. The lock cannot be openedby any means while the car is in motion, and if standing still a greatportion of the door must be cutaway before the lock can be disturbed.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-- The combination of thevertically-movable rod or bar D,,hooks F, rigidly attached to the same,movable hooks F, stops a, pin b, and guard b, with the dart-heads O onthe sliding door, substantially as and for the purposes herein setforth.

y In testimony that I claim the foregoing I have hereunto set my handthis 14th day of May, 1880.

WILLIAM BRADLEY.

Witnesses:

W. J. KERR, D. J. SPENCER.

